<template>
  <div class="login-container">
    <div class="poster-wrap">
      <div class="poster-inner">
        <img src="/images/logo.png" alt="">
        <p class="slogan">致力于以隐私计算技术构建数据信任与安全</p>
      </div>
    </div>
    <div class="login-wrap">
      <el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form" auto-complete="on" label-position="left">
        <div class="title-container">
          <h3 class="title">账号登录</h3>
        </div>

        <el-form-item prop="username">
          <span class="svg-container">
            <svg-icon icon-class="user" />
          </span>
          <el-input
            ref="username"
            v-model="loginForm.username"
            placeholder="请输入用户名"
            name="username"
            type="text"
            tabindex="1"
            auto-complete="on"
          />
        </el-form-item>

        <el-form-item prop="password">
          <span class="svg-container">
            <svg-icon icon-class="password" />
          </span>
          <el-input
            :key="passwordType"
            ref="password"
            v-model="loginForm.password"
            :type="passwordType"
            placeholder="请输入密码"
            name="password"
            tabindex="2"
            auto-complete="on"
            @keyup.enter.native="handleLogin"
          />
          <span class="show-pwd" @click="showPwd">
            <svg-icon :icon-class="passwordType === 'password' ? 'eye' : 'eye-open'" />
          </span>
        </el-form-item>
        <!-- <div class="forgot">
          <el-link type="primary" href="javascript:void(0);">忘记密码？</el-link>
        </div> -->

        <el-button :loading="loading" type="primary" style="width:100%;margin-bottom:30px;" @click.native.prevent="handleLogin">登录</el-button>

        <!-- <div class="tips">
          <span style="margin-right:20px;">username: admin</span>
          <span> password: any</span>
        </div> -->

      </el-form>
    </div>
  </div>
</template>

<script>
import { getValidatePublicKey } from '@/api/user'
import JSEncrypt from 'jsencrypt'

export default {
  name: 'Login',
  data() {
    // const validateUsername = (rule, value, callback) => {
    //   console.log(value)
    //   if (!validUsername(value)) {
    //     callback(new Error('Please enter the correct user name'))
    //   } else {
    //     callback()
    //   }
    // }
    const validatePassword = (rule, value, callback) => {
      if (value.length < 6) {
        callback(new Error('密码不能少于6位！'))
      } else {
        callback()
      }
    }
    return {
      publicKeyData: {},
      loginForm: {
        username: 'admin',
        password: '123456'
      },
      loginRules: {
        username: [{ required: true, trigger: 'blur', message: '请输入用户名' }],
        password: [{ required: true, trigger: 'blur', validator: validatePassword }]
      },
      loading: false,
      passwordType: 'password',
      redirect: undefined
    }
  },
  watch: {
    $route: {
      handler: function(route) {
        this.redirect = route.query && route.query.redirect
      },
      immediate: true
    }
  },
  mounted() {
    getValidatePublicKey()
      .then(({ result }) => {
        const { publicKey, publicKeyName } = result
        this.publicKeyData = { publicKey, publicKeyName }
      })
  },
  methods: {
    showPwd() {
      if (this.passwordType === 'password') {
        this.passwordType = ''
      } else {
        this.passwordType = 'password'
      }
      this.$nextTick(() => {
        this.$refs.password.focus()
      })
    },
    handleLogin() {
      this.$refs.loginForm.validate(valid => {
        if (valid) {
          this.loading = true
          const { publicKey, publicKeyName } = this.publicKeyData
          if (!publicKey) {
            this.$message({
              message: '请求异常，请刷新后稍后重试',
              type: 'error'
            })
            return
          }
          // console.log('getValidatePublicKey', result)
          const crypt = new JSEncrypt()
          crypt.setKey(publicKey)
          const { username: userAccount, password } = this.loginForm
          console.log(userAccount)
          const userPassword = crypt.encrypt(password)
          console.log({ userAccount, userPassword, validateKeyName: publicKeyName })
          const loginForm = { userAccount, userPassword, validateKeyName: publicKeyName }

          this.$store.dispatch('user/login', loginForm).then(() => {
            this.$router.push({ path: this.redirect || '/' })
            this.loading = false
          }).catch(() => {
            this.loading = false
          })
        } else {
          console.log('error submit!!')
          return false
        }
      })
    }
  }
}
</script>

<style lang="scss">
/* 修复input 背景不协调 和光标变色 */
/* Detail see https://github.com/PanJiaChen/vue-element-admin/pull/927 */

$bg:#283443;
$light_gray:#000;
$cursor: #000;

@supports (-webkit-mask: none) and (not (cater-color: $cursor)) {
  .login-container .el-input input {
    color: $cursor;
  }
}

/* reset element-ui css */
.login-container {
  .el-input {
    display: inline-block;
    height: 47px;
    width: 85%;

    input {
      background: transparent;
      border: 0px;
      -webkit-appearance: none;
      border-radius: 0px;
      padding: 12px 5px 12px 15px;
      color: $light_gray;
      height: 47px;
      caret-color: $cursor;

      &:-webkit-autofill {
        box-shadow: 0 0 0px 1000px #fff inset !important;
        -webkit-text-fill-color: $cursor !important;
      }
    }
  }

  .el-form-item {
    border: 1px solid rgba(0, 0, 0, 0.1);
    /* background: rgba(0, 0, 0, 0.1); */
    border-radius: 5px;
    color: #454545;
  }
}
</style>

<style lang="scss" scoped>
$bg:#2d3a4b;
$dark_gray:#889aa4;
$light_gray:#000;

.login-container {
  min-height: 100%;
  width: 100%;
  background-color: $bg;
  overflow: hidden;
  display: flex;
  align-items: center;
  .login-form {
    position: relative;
    width: 400px;
    max-width: 100%;
    /* padding: 160px 35px 0; */
    margin: 0 auto;
    overflow: hidden;
  }

  .tips {
    font-size: 14px;
    color: #fff;
    margin-bottom: 10px;

    span {
      &:first-of-type {
        margin-right: 16px;
      }
    }
  }

  .svg-container {
    padding: 6px 5px 6px 15px;
    color: $dark_gray;
    vertical-align: middle;
    width: 30px;
    display: inline-block;
  }

  .title-container {
    position: relative;

    .title {
      font-size: 26px;
      color: $light_gray;
      margin: 0px auto 40px auto;
      text-align: center;
      font-weight: bold;
    }
  }

  .show-pwd {
    position: absolute;
    right: 10px;
    top: 7px;
    font-size: 16px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
  }
}
</style>

<style lang="scss" scoped>
.login-container {
  width: 100vw;
  height: 100vh;
  background-image: url("/images/login-bg.png");
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  display: flex;
  .poster-wrap {
    flex-grow: 1;
    flex-shrink: 0;
    width: 50vw;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    img {
      display: block;
      margin-left: auto;
      margin-right: auto;
      width: 220px;
    }
    .slogan {
      font-size: 22px;
      color: rgba(0, 0, 0, 0.45);
    }
  }
  .login-wrap {
    flex-grow: 1;
    flex-shrink: 0;
    width: 50vw;
  }
  .forgot {
    color: #1989FA;
    font-size: 14px;
    text-align: right;
    padding-bottom:10px;
  }
}
</style>
